Ventilator for ships



lllllllllllllllllllllllllllll Il NFETERS. PHDTO-LITHOGAPMER WASHINGTON D C UNITED STATES PATENT OFFICE.

VENTILATOR FOR SHIPS, 84C.

Specification forming part of Letters Patent No. 119,374, dated August 15, 1865.

To all 'whom 'it may concern Be it known that I, BENAJAH J. BURNE'r'r, of Mount Vernon, in the county of Westchester and State of New York, have invented a new and useful Improvement in Ventilators for Ships and other Vessels, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part ol' this speccation, in whichA Figure l is a longitudinal vertical section through the center ot' the ventilator, and Fig. 2 is a transverse vertical section of' the same in a plane indicated by the line a a in Fig. l.

Similar letters of reference indicate corresponding parts in both figures.

This invention consists in certain -improvements whereby ventilators on the principle of that which is the subject of my Letters Patent dated January l0, 1865, are adapted to the sides of ships and other vessels, and provision is made for regulating the supply of air in tine weather, and also for excluding `water in rough weather, such improvement enabling the ventilators to be applied to the windows or side-lights of the vessel.

To enable others skilled in the vart to make and use my invention, I will describe its construction and operation.

A is the stationary casing of the ventilator, which is also the casing of the side-light when the ventilator is combined with the side-light,

as represented. To the outer end of this casing is screwed or otherwise iirmly secured a frame, G, provided with a rabbet, c, around the inner edge.` Into said rabbet a frame, B, is neatly tted, and a strong pane of glass, C, is fitted tightly into the frame B, and is firmly 'secured therein by any Well-known lneans. To

this frame B are cast or otherwise secured four deep diagonal Wings, ff, which are connected with a central boss, D, in the center of which there is a female screw-thread for the reception of a male screw-thread, d, on a spintriangular compartments, e, by means of four partitions, g, radiating from a central hub, E, to the four corners of the casing, or nearly so. These partitions extend from one end to the other of the casing, and are tirmly attached theretoby any well-known means.

The central hub, H, extends only to about the center of the casing longitudinally, where it is met by the central bess, D. The four wingsf, which are attached to the boss D, are iitted closely to the sides of the partitions g g, but in such manner as to be able to slide longitudinally, so that when the ventilator is opened and the air-ducts are lengthened the said air-ducts will be kept separated.

By a handle, I, being attached to the spindie E the said spindle can be turned, and by these means the frame B, with the four wings ff, can be moved longitudinally, so as to either close or open the ventilator and to regulate the openin g thereof.

The ventilator is properly fitted and secured in the side wall of a ship or other vessel, with the glass of the frame B toward the outside and the open end toward the inside of the ship, so that when the ventilator is opened a free passage for the ingress of fresh air and for the egress of impure or vitiated air.

The red outlines at the right-hand side of Fig. l of the drawings represent the ventilator to be open, and as the fresh air passes in at one side ot' the ventilator and through it, as shown by the arrows h h, this will cause a pressure of air inside of the vessel, which pressure will force the warm, impure or vitiated air through the opening on the other side ot' the ventilator, opposite to the side where the fresh air enters, as shown by the arrows t' fi, and the passages on the sides ot' the partitions will of course act in the same manner, according as the current ot' air outside may strike the ,ventilator.

This ventilator may be made of quadrangular, circular, or polygonal form. When it is to be used merely as a ventilator, and not in connection with a side-light or window, a solid shutter ot' wood or metal is substituted for the frame B and glass C.

Having thus fully described myimprovement in ventilators as applied to ships or other vessels, what I claim as new, and desire to se- 2. The combination of the side-light; or shutoure by Letters Patent, is ter with the movable partitions or wings, ap-

1. The combination of the stationary or fixed plied and operating substantially as described.

partitions with the longitudinally-movable B. J. BURNETT.

partitions or wings, arranged and operating Vitnesses:

substantially as and for the purpose herein de- J. W. GOOMBS,

scribed. Gr. W. REED. 

